Evaluate the determinant:
Answer: 2
Mathematics
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Solve the problem.Translate into the language of a derivative of the number of businesses with respect to time. N is the number of businesses in the downtown district after time t. The number of businesses downtown is decreasing at a slower and slower rate.
A. 
> 0, 
< 0
B. 
< 0, 
= k, k is a constant
C. 
< 0, 
> 0
D. 
< 0, 
< 0
Mathematics
Solve using Cramer's Rule.
A. (-1, 4,-2) B. (1, -4, -2) C. (1, 4, -2) D. (-1, 4, 2)
Mathematics
If a problem asks “how many cubes are in the nth figure,” an approach to solving the problem might be:
(a) Guess and Test. (b) Draw a Picture. (c) Make a Table. (d) Look for a Pattern. (e) Use a Variable.
Mathematics
Convert the equation given in rectangular form into polar form.y = 4
A. sin ? = 4
B. r = 4
C. r = 
D. r = 
Mathematics